Z41H flange forged steel gate valve

Product introduction:
Forged steel gate valve is a gate opening and closing parts, gate movement direction and perpendicular to the direction of the fluid, valve can only be fully open and fully closed, the flange forged steel gate valve can not be adjusted and the throttle. There are two gate sealing surface, the most common mode of gate valve sealing surface to form two wedge, wedge angle varies with the valve parameters, usually 50, medium temperature is not high to 2° 52 '. Wedge gate valve can be made into a whole, called the rigid gate; also be made to produce small deformation of the gate, in order to improve their craft, make up the sealing surface angle deviations in the process, this gate is called the flexible gate.

Application range:
Flange type forged steel gate valve can be widely used for water, sewage, construction, petroleum, chemical industry, food, pharmaceutical, textile, electric power, shipbuilding, metallurgy, energy systems, as a pipeline closure device.

Full diameter or diameter shrinkage
The lever bracket type
Self-centering clamp pressure sleeve type
Bolt connection, seal welded connection as well as the pressure from the tight connection valve cover whole sealing seat
Structural characteristics:

Forged steel gate valve has three kinds of body cover to connect the design form. The first is forged steel valve body bolted cover, connected by this form of valve, the valve body and the valve cover bolt connection, spiral wound gasket seal, the advantage of easy repair. The second body cover welding connection forged steel gate valve, connected by this form of valve, the valve body and the valve cover seal welded, the advantage of no external leakage. The third is the pressure from tight bonnet forged steel gate valve, connected by this form of valve, the valve body and valve cover are connected by a screw, internal pressure from the seal ring seal, the greater the advantage of internal pressure, the better the performance of its sealing.

Small fluid resistance, the sealing surface by the erosion of small and medium Chong brush.
Opening and closing more effort.
Media flow unrestricted, non-spoiler, do not reduce the pressure.
Simple form, structure, short length, good manufacturing process, wide range of application.
Forged steel flange gate valve installation

1 flange forged steel gate valve should be checked before installation the valve cavity and the sealing surface and other parts, there is dirt or sand does not allow attachment;
2 check the flange forged steel gate valve the bolt joints, require even tighten;
3 check the packing requirements of pressed parts, not only to ensure that the sealing filler, but also to ensure that gate open and flexible;
4 users before installing the valve, the valve must be proof models, connection size and attention to media flow, to ensure consistency with the requirements of the valve;
5 users to install the forged steel gate valve, valve driver must reserve the necessary space;
Wiring of the 6 drive device shall be conducted in accordance with the circuit diagram;
7 valve must be regularly maintained, should not be a collision and extrusion, so as not to affect the seal.